package databaseservice;

import java.util.ArrayList;

import po.PO;
import po.PO_User;
import database.DATATYPE;

public interface DatabaseService {
	public PO find(String ID);
	public ArrayList<PO> finds(String field, String value);
	public void insert(PO po);
	public void delete(PO po);
	public void update(PO po);

}
